Course detail
Noise and Vibrations
FSI-IHVAcad. year: 2023/2024
The following topics will be dealt with: Sources and sound propagation in closed and free areas. Monitoring and reduction of the noise in the living and working environment. Generation of vibrations, sensors and instruments for vibration measurement. Influence of the noise and vibrations to human health condition. Standards and limits. Practical acoustical measurements in common situations.
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Department
Entry knowledge
Rules for evaluation and completion of the course
A teacher checks the attendance in labs stated in the timetable. The form and the date of the compensation of missed lessons are specified by the teacher.
Aims
Knowledge of basic physical quantities for description of noise and vibrations in the working and living environment. Basic overview of standards and regulations concerning the measurement and evaluation of the noise and vibrations. Basic information about techniques for decreasing the noise and vibrations.
Study aids
Prerequisites and corequisites
Basic literature
MIŠUN, V. Vibrace a hluk. Brno : Vysoké učení technické v Brně, Fakulta strojního inženýrství, 2005. ISBN 80-214-3060-5. (CS)
NOVÝ, Richard. Hluk a chvění. 3.vyd. Praha: Vydavatelství ČVUT, 2009, 389 s. ISBN 80-01-04347-9. (CS)
NOVÝ, Richard. Ventilátory. Vyd. 3., přeprac. V Praze: Nakladatelství ČVUT, 2007, 104 s. ISBN 978-80-01-03758-4. (CS)
SZÉKYOVÁ, Marta, Karol FERSTL, Richard NOVÝ. Větrání a klimatizace. Bratislava: JAGA GROUP, s.r.o., 2006. 359 s. ISBN 80-8076-037-3. (CS)
Ver, I.L, Beranek, L.L.: Noise and Vibration Control Engineering: Principles and Applications, 2nd Edition. McGraw-Hill, Inc., 2005. ISBN: 978-0-471-44942-3 (EN)
Recommended reading
VAŇKOVÁ, Marie a kolektiv. Hluk, vibrace a ionizující záření v životním a pracovním prostředí část I. 1.vyd. Brno: PC-DIR, spol. s.r.o., 1995. 140 s. ISBN 80-214-0695-X. (CS)
VAŇKOVÁ, Marie a kolektiv. Hluk, vibrace a ionizující záření v životním a pracovním prostředí část II. 1.vyd. Brno: PC-DIR, spol. s.r.o., 1996. 161 s. ISBN 80-214-0818-9. (CS)
Elearning
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
Noise as a pollutant factor of the living and working environment. Sources of the noise.
Basic concepts and quantities. Sound field and its energy. Analysis of acoustic signals. 1/1 oct and 1/3 oct frequency analysis. Sound propagation in free space and closed area.
Sound field of several sources. Sound power. Directional emission. Noise of air-conditioning machines. Sound mufflers.
Noise reduction of machines. Absorption construction.
Instrument and rooms for measurement of the sound. Actual directives and limits for the noise.
Generation of the vibrations. Basic concepts and quantities of mechanical vibrations. Measurement of vibrations. Sensors and instruments. Diagnostics and monitoring of machines in operation. Measurement of the impact of the vibration on a human.
Methods for reducing vibrations.
Currentl directives and vibrations limits.
Software support in noise and vibration problems
noise and vibration of HVAC systems
Laboratory exercise
Teacher / Lecturer
Syllabus
Measurement of the acoustic power of the noise source.
Measurement of the sound isolation characteristics of the construction.
Analysis of the mechanical vibrations of the engine in dependence of operational revolutions.
Influence of the absorption layer on mechanical vibration transmission from noise source to installation pad.
Elearning